K&N Power Kleen is the only cleaner recommended to clean K&N cotton air filter elements
5i 1993-1995 Subaru Impreza Base 1996-1997 Subaru Impreza Brighton 1993-2001 Subaru Impreza L 1993-1994 Subaru Impreza LS 1995-1996 Subaru Impreza LX 1995-2004 Subaru Impreza Outback 2005-2007 Subaru Impreza Outback Sport 1998-2005 Subaru Impreza RS 2002-2004 Subaru Impreza TS 2002-2007 Subaru Impreza WRX 2006-2007 Subaru Impreza WRX Limited 2004-2007 Subaru Impreza WRX STI 2007 Subaru Impreza WRX STI Limited 2006-2007 Subaru Impreza WRX TR 1994 Subaru Legacy Alpine Sport 1990
Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency
but they are perfect for use in any gas
2016-2018 Nissan Altima SR 2013-2015 Nissan Altima SV 1993-2001 Nissan Altima XE 1990 Nissan Axxess SE 1990 Nissan Axxess XE 1990-1994 Nissan D21 Base 1990-1994 Nissan D21 SE 1994 Nissan D21 XE 2001-2004 Nissan Frontier SC 1999-2003 Nissan Frontier SE 2002-2004 Nissan Frontier SVE 1999-2004 Nissan Frontier XE 2021 Nissan Maxima 40th Anniversary Edition 1982-1984 Nissan Maxima GL 1995-2003 Nissan Maxima GLE 1989-2003 Nissan Maxima GXE 2016-2021 Nissan Maxima Platinum 2020 Nissan Maxima Platinum Reserve 2009-2014
Autometer Sport-Comp 52mm 60-170 Degree Short Sweep Electronic Oil Temperature Gauge Oil Pumps K&N Power Kleen is theAn Engine Running A High Oil Temperature Will Fail, As Proven Time And Time Again. Monitoring This Critical Parameter Ensures That You Are Running The Correct Weight Oil And That Your Oil Cooling System Is Performing Properly. Highly Accurate And Durable Thanks To Autometers Patented Air Core Meter Movement, A Single Wire, 1 8" Npt Temperature Sender Is Included.